Table 8.
Effects of dietary vitamin E supplementation on immune status in breeding geese 1.
| Items | Vitamin E (IU/kg) | SEM | p-Value | |||
|---|---|---|---|---|---|---|
| 0 | 40 | 200 | 2000 | |||
| Spleen index/% | 0.04 b | 0.05 a | 0.05 a | 0.05 a | 0.01 | 0.048 |
| IgA/(μg/mL) | 219.70 b | 265.78 ab | 295.83 a | 301.29 a | 10.31 | 0.012 |
| IgM/(μg/mL) | 1 225.1 | 1 299.4 | 1 388.4 | 1 409.5 | 29.32 | 0.092 |
| IgG/(μg/mL) | 1 995.3 B | 2 420.7 AB | 2 564.1 AB | 2 886.3 A | 81.50 | <0.001 |
a,b Means with different superscripts within each row are significantly different (p < 0.05). A,B Means with different superscripts within each row are extremely significantly different (p < 0.01). 1 IgA, immunoglobulin A; IgM, immunoglobulin M; IgG, immunoglobulin G. The spleen index (%) = The weight of spleen (g)/The BW (g) × 100%. Each value represents the mean of the four replicates (two geese per replicate) in each group.